<template>
  <div class="main-container">
    <div class="main-content">
      <div class="row">
        <div class="col-sm-10 col-sm-offset-1">
          <div class="login-container">
            <div class="center">
              <h1>
                <i class="ace-icon fa fa-leaf green">控台登录</i>
              </h1>
              <h4 class="blue" id="id-company-text">&copy; 宇信科技</h4>
            </div>

            <div class="space-6"></div>

            <div class="position-relative">
              <div id="login-box" class="login-box visible widget-box no-border">
                <div class="widget-body">
                  <div class="widget-main">
                    <h4 class="header blue lighter bigger">
                      <i class="ace-icon fa fa-coffee green"></i>
                      请输入用户名和密码
                    </h4>

                    <div class="space-6"></div>

                    <form>
                      <fieldset>
                        <label class="block clearfix">
                            <span class="block input-icon input-icon-right">
                                <input v-model="user.loginName" type="text" class="form-control" placeholder="用户名" />
                                <i class="ace-icon fa fa-user"></i>
                            </span>
                        </label>

                        <label class="block clearfix">
                            <span class="block input-icon input-icon-right">
                                <input v-model="user.password" type="password" class="form-control" placeholder="密码" />
                                <i class="ace-icon fa fa-lock"></i>
                            </span>
                        </label>

                        <label class="block clearfix">
                          <span class="block input-icon input-icon-right">
                            <div class="input-group">
                              <input v-model="user.imageCode" type="text" class="form-control" placeholder="验证码">
                              <span class="input-group-addon" id="basic-addon2">
                                <img v-on:click="loadImageCode()" id="image-code" alt="验证码"/>
                              </span>
                            </div>
                          </span>
                        </label>

                        <div class="space"></div>

                        <div class="clearfix">
                          <label class="inline">
                            <input v-model="remember" type="checkbox" class="ace" />
                            <span class="lbl"> 记住我</span>
                          </label>

                          <button type="button" class="width-35 pull-right btn btn-sm btn-primary" v-on:click="login()">
                            <i class="ace-icon fa fa-key"></i>
                            <span class="bigger-110">登录</span>
                          </button>
                        </div>

                        <div class="space-4"></div>
                      </fieldset>
                    </form>


                    <div class="space-6"></div>

                  </div><!-- /.widget-main -->

                </div><!-- /.widget-body -->
              </div><!-- /.login-box -->


            </div><!-- /.position-relative -->

          </div>
        </div><!-- /.col -->
      </div><!-- /.row -->
    </div><!-- /.main-content -->
  </div><!-- /.main-container -->
</template>

<script>

export default {
  name: 'login',
  data: function() {
    return {
      user: {},
      remember: true, // 默认勾选记住我
      imageCodeToken: ""
    }
  },
  mounted() {
    let _this = this;
    $('body').removeClass('no-skin');
    $('body').attr('class', 'login-layout light-login');
    // console.log("login...");

    // 从缓存中获取记住的用户名密码，如果获取不到，说明上一次没有勾选“记住我”
    let rememberUser = LocalStorage.get(LOCAL_KEY_REMEMBER_USER);
    if (rememberUser) {
      _this.user = rememberUser;
    }

    // 初始时加载一次验证码图片
    _this.loadImageCode();
  },
  methods: {
      login() {
          let _this = this;

          // 将明文存储到缓存中
          // let passwordShow = _this.user.password;

          // 如果密码是从缓存带出来的，则不需要重新加密
          let md5 = hex_md5(_this.user.password);
          let rememberUser = LocalStorage.get(LOCAL_KEY_REMEMBER_USER) || {};
          if (md5 !== rememberUser.md5) {
            _this.user.password = hex_md5(_this.user.password + KEY);
          }

        _this.user.imageCodeToken = _this.imageCodeToken;

          Loading.show();
          _this.$ajax.post(process.env.VUE_APP_SERVER + '/system/admin/user/login', _this.user).then((response)=>{
            Loading.hide();
            let resp = response.data;
            if (resp.success) {
              console.log("登录成功：",resp.content);
              let loginUser = resp.content;
              Tool.setLoginUser(loginUser);

              // 判断“记住我”
              if (_this.remember) {
                // 如果勾选记住我，则将用户名密码保存到本地缓存
                // 原：这里需要保存密码明文，否则登录时又会再加一层密
                // 新：这里保存密码密文，并保存密文md5，用于检测密码是否被重新输入过
                let md5 = hex_md5(_this.user.password);

                LocalStorage.set(LOCAL_KEY_REMEMBER_USER, {
                  loginName: loginUser.loginName,
                  password: _this.user.password,
                  md5: md5
                });
              } else {
                // 没有勾选“记住我”时，要把本地缓存清空，否则按照mounted的逻辑，下次打开时会自动显示用户名密码
                LocalStorage.set(LOCAL_KEY_REMEMBER_USER, null);
              }

              this.$router.push("/welcome")
            } else {
              Toast.warning(resp.message);
              _this.user.password = "";
              _this.loadImageCode();
            }
          });
      },

    /**
     * 加载图形验证码
     */
    loadImageCode: function () {
      let _this = this;
      _this.imageCodeToken = Tool.uuid(8);
      $('#image-code').attr('src', process.env.VUE_APP_SERVER + '/system/admin/kaptcha/image-code/' + _this.imageCodeToken);
    },
  }
}
</script>

<style scoped>
  .input-group-addon {
    padding: 0;
  }
</style>

